Republican Rep. Mike Coffman and his Democratic challenger, Andrew Romanoff, clashed over immigration, campaign finance and the budget on Thursday, in the first debate in one of the most competitive, expensive and closely watched House contests in the nation.

New York state's second-largest public-sector union endorsed Zephyr Teachout's long-shot bid to oust Gov. Andrew Cuomo on Thursday, while the state's powerful teachers' union announced it will sit out this year's governor's race.